In this tutorial I will show you how to setup a MQTT Broker in Linux( And I am using Raspberry pi3 this time). Here is the link to mosquitto. https://mosquitto.org/download/ Installation Update your Device. sudo apt update Install the mosquitto by using below command: sudo apt install mosquitto if this error is shown: E: ロック /var/lib/dpkg/lock–frontend が取得できませんでした – open (11: リソースが一時的に利用できません) Please run these commands: sudo rm /var/lib/apt/lists/locksudo rm /var/lib/dpkg/locksudo … Continue reading MQTT#Broker Setup